Hello,
in addition to the "buzz" test, that is if it buzzes but it still won't start, try some of the basic tests.
Having "The Book" will be very useful.
For fuel:
- try a fuel pressure test, if you have a pressure gauge,
- test the injector spray pattern (simply detach
the injector pair on one side at a time,
get an appropriate pan/cup and have someone
try to start it. You should see a cone-shaped spray)
For spark:
- remove one wire at a time and insert a good
spark plug. Touch the engine ground with the
spark plug and have someone crank it.
- test also spark timing
Best of luck, let us know how you do,
Claudio
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